Intel Xeon E3 1275 's Advantages
Higher base frequency (3.4GHz vs 2.2GHz)
Lower TDP (95W vs 200W)
EPYC 7552 's Advantages
Released 8 years and 4 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (192MB vs 8MB)
More modern manufacturing process (7nm vs 32nm)